linux-kernel - Re: [RFC,PATCH 0/14] utrace/ptrace

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Date:	Thu, 26 Nov 2009 13:55:52 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org,
	"Frank Ch. Eigler" <fche@...hat.com>, utrace-devel@...hat.com,
	Alexey Dobriyan <adobriyan@...il.com>,
	Jim Keniston <jkenisto@...ibm.com>
Subject: Re: [RFC,PATCH 0/14] utrace/ptrace

On Thu, 2009-11-26 at 12:37 +0530, Srikar Dronamraju wrote:
> Hi Christoph, 
> 
> > 
> > The other thing is that this patchset really doesn't quite justify
> > utrace.  It's growing a lot more code without actually growing any
> > useful functionality.  What about all those other utrace killer
> > features that have been promised for a long time?
> > 
> 
> We are working on in-kernel gdbstub which was one of the features that
> you had asked for. gdbstub does pass unit tests; but we are looking at
> some way to hack the GDB testsuite to run its regression tests. Once we
> are able to run the GDB testsuite and utrace is part of some upstream
> tree, we plan to post these patches to LKML for comments. gdbstub uses
> utrace and uprobes underneath. Uprobes was rewritten to remove issues
> that LKML developers had opposed. Uprobes also has its own ftrace plugin
> to use uprobes.
> 
> Currently in-kernel gdbstub is hosted by Frank Ch. Eigler over here:
> git://web.elastic.org/~fche/utrace-ext.git
> branch name utrace-gdbstub-uprobes

If its anywhere near functioning it would have made sense to send it out
as an RFC patch-set right along with the utrace one.
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